Preheat oven to 375 degrees F. Sift together the flour and baking soda and set aside. In a separate bowl cream the butter,sugar and brown sugar. Beat in instant vanilla pudding mix until well blended.Stir in eggs
and vanilla. Now blend in flour mixture. Finally add chocolate chips. Drop cookie batter onto cookie sheets with a rounded spoon. Bake for 8 to 10 minutes until the edges are golden brown.